Portable water filter



FIG. 1 is a perspective view as seen from the top, front and left side of a first embodiment of portable water filter showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view as seen from the top, front and left side of a second embodiment of portable water filter showing my new design;

FIG. 8 is a front elevational view thereof;

FIG. 9 is a rear elevational view thereof;

FIG. 10 is a right side elevational view thereof;

FIG. 11 is a top plan view thereof; and,

FIG. 12 is a bottom plan view thereof.

The broken lines in FIGS. 7 through 12 representing upper and lower marginal tabs are for illustrative purposes only and form no part of the claimed design. Broken lines in FIGS. 11 and 12 representing filter media confining screens are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portable water filter, as shown and described. 